2023–24 Liga Iberdrola de Rugby

The 2023–24 Liga Iberdrola de Rugby was the 14th season of the Liga Iberdrola de Rugby, the top flight of Spanish domestic women's rugby union competition and the 8th to be sponsored by Iberdrola. The reigning champions entering the season where Majadahonda who claimed their 3rd league title after winning the 2022-23 final against Corteva Cocos.

Teams
Eight teams compete in the league – the top seven teams from the previous season and AVR FC Barcelona who were promoted as champions of the 2022–23 Honor Division B. They replaced Complutense Cisneros who were relegated after six years in the top flight.

Regular season
Fixtures for the season were announced by the Spanish Rugby Federation on 16 August 2023. This season will use a new competition format. Every team will play each other once. Then the teams are splitted into 2 groups. Group A comprises the first 4 placed and Group B the 4 last. Teams play again against the others on their group, thus reaching a total of 10 rounds. The schedule for the second phase of the regular season was announced by the Spanish Rugby Federation on 6 February 2024.

Super Cup
On November 28, the Spanish Rugby Federation announced an agreement between the two involved teams for which the second edition of the Supercup would be played at the same time as the League matches between them. Thus, Round 3 match played on December 9 in Majadahonda would be also the first leg of the Supercup. If both team ended on the same group for the second phase of the League, the match between them played on Seville would be the second leg, while if the teams ended in different groups, the winner of the first one would be crowned champion.

After Round 6 of the League regular season, since it was already impossible for Ghenova Cocos to end in the top 4 of the table, Silicius Majadahonda was declared champion of the Super Cup.

RFER Cup
After the 2023 General Assembly, the Spanish Rugby Federation announced the creation of a new competition, the RFER Cup, set to be played in preseason and during the 2024 Rugby Europe Women's Championship window. The competition will see the 16 teams of the two top categories split in 4 regional pools. Every team will play once against the other 3 in their pool, and the winner of each one will classify for the semi-finals.